Hei, ok.. I got a problem where I lack knowledge (and time) on solving the problem.
The problem: One gets a null pointer exception if one tries to add a SIDLayer in OJ 1.2. The null pointer comes from a non existing Blackboard inside WMSLayer. SIDLayer actually extends WMLayer (in this case WMSLayer.init() is called first - before any code in SIDLayer is executed.. so it looks like I can not solve the issue in SIDLayer itself, or can I?). The cause seems to be, that the constructors of WMSLayer have been changed within the last half year (from revision 908 on). I tried now the simple way of just using an old version of WMSLayer. But then I get the problem, that JUMP does not know how to render the SIDLayer (as it becomes a different instance of WMSLayer, i.e. the old WMSLayer that I would like to use has then a different class path... jippy). Ok.. a next step would be to add an extra renderer and factory, by simply copying and renaming the WMS-Renderer stuff. But.. here I stuck again.. I have no idea how to do the assignment between LayerType and Renderer (using the contentId stuff)... and this furthermore it is also a "stupid" solution. A better Idea would be to use Ole's Pirol solution or what Paul has written in the RenderingManager. But I simply lack background knowledge and willingness on how to use both approaches (every GUI/rendering stuff is far over my self-taught programming knowledge). So.. if anybody has suggestions... or is willing to fix it, then he is warmly welcome!!! ..or somenody writes a DOC on how to add a new image renderer.... I am looking forward to the day when I want to find out how to add the ImageJ stuff from Erwans team (which probably requires as well to look into the rendering stuff :( time for dinner now Stefan PS: conclusion: MrSID Layers support is dumped since OJ1.2 (F) and future versions. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
